增加从WASM中生成Material Design 3主题样式的功能。

color-module/src/convert/mod.rs

@@ -0,0 +1,26 @@
+use palette::{
+    cam16::{Cam16Jch, Parameters},
+    convert::FromColorUnclamped,
+    IsWithinBounds, Srgb,
+};
+
+pub fn map_cam16jch_to_srgb(origin: &Cam16Jch<f32>) -> Srgb {
+    let mut new_original = Cam16Jch::new(origin.lightness, origin.chroma, origin.hue);
+    const FACTOR: f32 = 0.99;
+    loop {
+        let new_srgb =
+            Srgb::from_color_unclamped(new_original.into_xyz(Parameters::default_static_wp(40.0)));
+        if new_srgb.is_within_bounds() {
+            break new_srgb;
+        }
+        new_original = Cam16Jch::new(
+            new_original.lightness,
+            new_original.chroma * FACTOR,
+            new_original.hue,
+        );
+    }
+}
+
+pub fn map_cam16jch_to_srgb_hex(origin: &Cam16Jch<f32>) -> String {
+    format!("{:x}", map_cam16jch_to_srgb(origin).into_format::<u8>())
+}